rewrite of Boss Key mpv extention for Wayland

rather than using hacky methods like xtodo or ... use mpv own API/ABI to pause and, minimize mpv.

Add to input.conf:

b script-binding minimize-window

Copyright

mpv wayland Boss-key is released under version 3 or later of the GPL, the GNU General Public License.

See license.txt.

The author of mpv wayland Boss-key:

• Copyright (C) 2023-2024 Mohammadreza Hendiani <[email protected]>